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Characterization of T helper lymphocytes in chronic inflammation

机译:慢性炎症中T辅助淋巴细胞的特征

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摘要

Identification of the genes responsible for the targeting of chronically activated T helper 1 (T_H1) cells will help us to design specific therapies against chronic inflammation. By mimicking the maturation of T_H1 in chronic inflammation, T_H1 cells were repeatedly activated in vitro and their gene expression was compared. We identified the transcription factor Twistl as a marker of chronically activated T_H1 cells. Induction of Twistl requires interleukin-12 signalling. The Twistl gene is expressed after the engagement of the T-cell receptor and increases with the number of antigenic reactivations. T_H cells with a high Twistl expression were found to accumulate in chronically inflamed tissues. Ectopically expressed Twistl suppressed acute inflammation in T_H1-mediated delayed-type hypersensitivity by inhibiting the expression of pro-inflammatory cytokines. Twistl serves as intrinsic regulator limiting the pro-inflammatory potential of T_H1 cells in the continuous presence of antigen and represents a biomarker for T_H1 cells involved in the inflammation.
机译:鉴定负责靶向慢性激活的T辅助1(T_H1)细胞的基因将有助于我们设计针对慢性炎症的特定疗法。通过模仿T_H1在慢性炎症中的成熟,可以在体外反复激活T_H1细胞,并比较它们的基因表达。我们确定转录因子Twist1为长期激活的T_H1细胞的标志物。 Twistl的诱导需要白介素12信号传导。 Twistl基因在T细胞受体参与后表达,并随着抗原再激活次数的增加而增加。发现具有高Twist1表达的T_H细胞在慢性发炎的组织中蓄积。异位表达的Twist1通过抑制促炎性细胞因子的表达,抑制了T_H1介导的迟发型超敏反应中的急性炎症。 Twistl充当内在调节剂,可在抗原连续存在时限制T_H1细胞的促炎潜力,并代表参与炎症的T_H1细胞的生物标记。

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  • 来源
    《Futura》 |2009年第1期|65-69|共5页
  • 作者

    Uwe Niesner;

  • 作者单位

    Department of Cell Biology, German Rheumatology Research Center (DRFZ), Berlin, Germany;

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  • 正文语种 eng
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